Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Kc6 win in 1 half-moves
2 b3 loss in 2 half-moves
3 Kaa8 loss in 2 half-moves
4 Kab8 loss in 2 half-moves
5 Kba8 loss in 2 half-moves
6 Kbb8 loss in 2 half-moves
7 Kc7 loss in 2 half-moves
8 Kc8 loss in 2 half-moves
9 Kaa6 loss in 1 half-moves
10 Kab6 loss in 1 half-moves
11 Kba6 loss in 1 half-moves
12 Kbb6 loss in 1 half-moves